import React, {useState} from 'react';
import Child from "./components/Child";

function App() {
	const [age,setAge] = useState(90);
	return (
		<div>
			<h3>App4</h3>
			<hr/>
			<Child setAge={setAge} age={age} userName={"zhangsan"} />
		</div>
	);
}

export default App;